/**
* Copyright (C) 2008 Happy Fish / YuQing
*
* FastDFS Java Client may be copied only under the terms of the GNU Lesser
* General Public License (LGPL).
* Please visit the FastDFS Home Page http://www.csource.org/ for more detail.
*/

package com.hlf.common.oss.fastdfs;

/**
* Download file callback interface
* @author Happy Fish / YuQing
* @version Version 1.4
*/
public interface DownloadCallback
{
    /**
    * recv file content callback function, may be called more than once when the file downloaded
    * @param file_size file size
    *    @param data data buff
    * @param bytes data bytes
    * @return 0 success, return none zero(errno) if fail
    */
    public int recv(long file_size, byte[] data, int bytes);
}
